Device for operating bulkhead doors



Feb. 23, 1932. D. wlEsE DEVICE. FOR OPERATING BULKHEAD DooRs Original Filed July 9, 1928 2 Sheets-Sheet .NSN w Mm. ...F

1m@ my@ TA. www.

. NW man. MIM -u MW w n@ .7m Y FQ WW dw /w Feb. 23, 1932. D. wlEsE 1,846,293

DEVICE FOR QPERATING BULIKIIEII DOORS original Filed July 9, 1928 2 sheets-sheet 2 AT1-5:1 BN EV.

Patented Feb. 23, 1932 UNITED STATES PATENT OFFICE DIEDRICH WIESE, OF BREMEN, GERMANY, ASSIGNOR TO ATLAS-WERKE AKTIENGESELL- SCHAFT, F BREMEN, GERMANY, A CORPORATION OF GERMANY DEVICE FOR OPERATING BULKHEAD DOORS Original application ledv July 9, 1928, Serial No. 291,442, and in Germany July 11, 1927. Divided and this application ed September, 26, 1931.

The present invention is a division of my co-pending application Serial No. 291,442, tiled July 9, 1928.

The invent-ion relates to devices for opening and closing the doors of bullrlieads of vessels from a central station and from their specitic location by the pressure of a liquid. Particularly the invention relates to a device as set forth in which a cylinder enclosing a ilying piston is arranged in the pressure liquid pipe near the door of the bulkhead and is connected with its center part to the cylinder displacing the door.

In devices for opening and closing the doors of bulkheads it is often required, that it be possible to simultaneously close and open all doors of the bulkheads from a central station, for instance lrom the pilot-bridge, and

to close the several doors at their specific locations, and that it is, however, not possible to again open the doors at their locations, when they have been closed from the central station. To prevent in such case, wherein persons trapped in the rooms closed from the central station have no possibility to save themselves, all rooms are provided with ladders by means of which such persons may reach the deck. Furthermore in such instal lations a bell-signal is given shortly before the doors are closed so that the persons in the rooms have sufficient time to leave the room.

One object of the present invention is to materially simplify the construction of a device as set forth.

According to international official regulations, persons enclosed in the rooms closed from a central station, must have the possibility of opening the doors to save themselves and in such cases care must be taken that the doors having been opened at the specific locations automatically close again, so that the vessel is not exposed to danger.

Another object of the invention is theretore to provide a device which complies with these regulations.

Other objects of the invention are to simplify the device and to provide means by which the opening and closing of the doors is substantially facilitated.

In the accompanying drawings some modes Serial No, 565,334.

of carrying the invention into effect are o .shown diagrammatically by wayr of example.

l is a diagrammatic view of a construction of the device according to the invention with the several parts in the position they occupy when the main valve in the central station is turned' to the position bulkheads open and the four`way-valve is adjusted to the position for closing the door at the specitic location.

Fig. 2 is a similar View but with the several parts of the device in the position they occupy when the main valve in the central station is turned to bulkheads open and the fouravay-valve is adjusted for opening the door at the specific location. y

Fig. 3 is a similar View illustrating the device shown in Figs. l and 2 with the several parts in the position which they occupy when the main valve in the central station is turned to the position bulkheads closed,

Fig. 4 is a similar view corresponding to Fig. 3 with the several parts of the device in the position they occupy, if the doors are opened when the main valve in the central station is turned to bulkheads closed,

Fig. 5 is a similar view illustrating a modiiied construction of the device according to the invention showing the several parts in the position they occupy, if the door is closed at a specific location and the main valve in the central station is turned to bulkheads open| Fig. 6 is a view similar to Fig. 5 showing the usual position of the several parts of the device, if the door is to be opened at the specific location and the main valve in the central station is turned to bulkheads open,

Fig. 7 is a similar view oi the same device with the several parts in the position for closing the doors at the specific location, if the main valve in the central station is turned to bulkheads closed, and

Fig. 8 is a similar view of the several parts in the position they occupy, if the doors are to be opened at the specific location and the main valve in the central station is turned to the position bulkheads closed.

In the construction illustrated in Figs. l to 4, the pressure liquid from the tank 41 is passed through the pipe 42 to a three-wayslidably arranged which is connected to the door 58 of the bulkhead by means of a piston rod 57.

The lower surfaces of the cylinders 55 are, by means of the branch pipes 59, 60 etc., also connected to the four-way-valve 54 in the manner shown in the drawings. Opposite the pipes 59, 60 etc., the pipes 6l, 62 etc., branching from the waste water pipe 63 which leads tothe waste water tank 64, run into the fourway-valve 54. The waste water tank 64 is connected to the three-way-valve 43 by a pipe 65. Y

In Figs. l and 2 it is supposed, that the three-way-valve 43 arranged in the central station, is adjusted to the position bulkheads open. In this case the controly pipe 44 is, through the three-way-valve 43, connected to the waste water pipe 65. The pressure water permanently present in the pressure pipe 51 permanently acts upon the small surface of the differential piston 48.

If the handle 66 of the four-way-valve 54 'is brought to the position shown in Fig. l and locked by a pin 67 against return movement under the action of the differential piston 48 also acting upon the four-way-valve 54, the pressure water from the pipe 49 passes by way of the four-way-valve 54 to the upper side of the door closing cylinder 55 and the door 58 of the bulkhead is closed. If this door is to be opened, the pin 67 is removed.

By means of the differential piston 48 the four-way-valve 54 is then brought into the position shown in Fig. 2. Y The pressure water new passes through the branch pipe 60 Fig. 2) to the lower face of the piston, while the upper face of same is, by means of the four-way-valve 54, connected to the branch pipe 62 for theV waste water. The bulkhead door 58 is therefore lifted into the position illustrated in Fig. 2. This gives the possibility of closing the bulkhead doors independent of the adjustment to bulkheads open in the central station;

In Figs. 3 and 4 it is supposed, that in the central station, i. e. on the pilot-bridge, the three-way-valve 43 is turned to the position bulkheads closed. The pipe 52 now communicates by way of the three-way-valve 43 with the control pipe 44. Pressure water therefore acts upon both faces of the differential piston 48 which consequently rises into the upper position shown in Fig. 3. Hereby the four-way-valve 54, connected to the differential piston 48, is turned into the position shown in Fig. 3 in which the pressure Water may pass to the upper end of the door closing cylinder 55 and the bulkhead door 58 may close. If now persons must stillk pass through the bulkhead door, the handle 66 is to be moved into the position shown in Fig. 4 only, whereby thcl pressure water is passed to the lower end of the door closing cylinder 55 and the upper end ofthis cylinder is connected to the waste water pipe 63. As soon as the handle 66 is released again, the bulkhead door is automatically closed, so that the vessel is in no way exposed to danger.

In this arrangement pressure and waste water pipes are ,constant and need not be controlled by a main control valve. Hereby it is, for instance, possible to use the pressure water of the pipe permanently under pressure for loading thevalve-cock for the actuation of an hydraulic coupling. between the bulkhead door Vand the hand drive of same, in such a manner, that, if the hydraulic means is acting the hand, drive is cut out and vice Versa. Furthermore in this structure one reversing member only is used for each bulkhead door which member has one handle only, so that mistakes in operation are impossible.

This reversing member may be operated fromthe pilot-bridge as well as at the specific location of aV door.

In the construction illustrated in Figs. 5-8 the pressure liquid from a tank 71 is passed through a pipe 72 to a three-way-valve 73 arrangedin the central station orupon the pilot-bridge. vA control pipe 74 with branch pipes 75, 76 etc. passes from this three-Wayvalve 73 to the lower face of a piston 78 slidably arranged in a cylinder 77. From the pressure water pipe 72 branches the pressure pipe 8l the branch pipes 82, 83 etc. are connected to a four-wav-valve 84 and to the door closing cylinders 85. In each of these cylinders a piston 86 is slidably arranged which, by means of a piston rod 87, is connected to the bulkhead door 88.

The lower ends of thecylinders 85 are, by the branch pipes 89, 90 etc., also connected to the four-way-valve 84 in the manner shown in the drawings. Opposite these pipes 89, 90 etc., branch pipes 91, 92 etc. run into the four-way-valve 84 which pipes 91, 92 etc. branch from the waste water pipe 93 extendingto the waste water tankV 94. The latter is connected, by a pipe 95, to the three-wayvalve 73.

In Figs. 5 and 6 it is supposed, that the three-way-valve 73 arrangedk in the central station is turned to the position bulkheads open. In this case the control pipe 74 is connectedto the waste water pipe 95 through the three-way-valve 73. If the handle 96 Vof the four-way-valve 84 is brought into the p0` sition shown in Fig. 6 and the bulkhead door 88 is opened.

If the handle 9G of the four-way-valve 84 1s brought into the position shown in Fig. 5, the pressure Water from the branch 82 of the pressure pipe 8l flows through the our-vvay valve 81.1@ to the upper end of the cylinder 85 and forces the piston 86 together With the connected bulkhead door 88 into the closed position.

lf the bulkhead doors are to be closed from the pilot-bridge, the three-Way-valve 73 is brought into the position bulkheads closed (Figs. 7 and 8). The control pipe 74 is now, through the three-Way-valve 7 3, connected to the pressure Water pipe 72. The piston 7 8 is, as shown in Fig. 7, also forced upwards and has turned the four-Wav-valve 84, connected to its piston rod, into the position shown in Fig. 7. In this position the upper end of the cylinder 85 is, as shown in Fig. 5, connected to the pressure Water pipe and the bulkhead door 88 is closed.

The bulkhead doors cannot be opened again from the central station, as the piston 78 would not return to its lowest position if the control pipe 74 would be connected to the Waste Water pipe 95. This return movement is only possible by Jturning the handle 96 into the position shown in Fig. 8. In this posi tion the lower end of the cylinder 85 is connected to the pressure pipe and the piston 86 is lifted together with the bulkhead door 88.

I claim as my invention:

l. A device for opening and closing bulkhead doors of vessels by liquid pressure at the specific location of the doors and for closing the doors from a central station, comprising a source of liquid pressure; a central valve in pipe communication with the source; a four-Way valve for each door in pipe com munication With the central valve; a cylinder and piston for each door and in pipe communication with said valves, said piston being connected to and adapted to actuate said four-Way valve; and a piston and cylinder' for operating each door, said last-named cylinder being in pipe communication with the tounway valve to permit opening and closing of the door by means of the door valve and closing of the door by means of the central valve.

2. A device for opening and closing bulkhead doors of vessels by liquid pressure at the specific location of the doors and for closing the doors from a central station, comprising a source of liquid pressure; a central three-Way valve in pipe communication with the source; a four-Way valve for each door in pipe communication with the central valve; a cylinder and piston for each door and in pipe communication with said valves, said piston being connected to said four-Way valve; and a piston and cylinder for operating each door, said last-named cylinder being in pipe communication with the four-way valve to permit opening and closing of the door by the door valve and closing of the door by means of the central valve and the piston connected to the four-Way valve being adapted to actuate the four-Way valve to closed position When the three-Way valve is in closed position.

3. A device 'for opening and closing bulkhead doors of vessels by liquid pressure at the specific location of the doors and for closing the doors from acentral station, comprising a source of liquid pressure; a central three-Way valve in pipe communication with the source; a four-Way valve for each door in pipe communication With the central valve; a cylinder and piston for each door and in pipe communication with said valves, said piston being connected to said four-Way valve; a piston and cylinder for o erating each door, said last-named cylinder eing in pipe communication with the four-Way valve to permit opening and closing of the door by means of the door valve and closing the door by the central valve and the piston connected to the four-way valve being adapted to actuate the four-Way valve to closed position when the three-Way valve is in closed position; and a tank in pipe communication with the pipe installation between the valves adapted to receive the liquid exhausting from the cylinder of the door.

In testimony whereof, I afX my signature.

DIEDRICH WIESE. 

